摘要:
PROBLEM TO BE SOLVED: To provide a coil-encapsulating powder magnetic core arranged, such that compaction state of a powder core can be improved and cracking and breaking are prevented on the peripheral of the lead-out portion of a terminal. SOLUTION: The coil-encapsulating powder magnetic core comprises a coil body 2, having a longitudinal winding structure of flat-rectangular wire 6; a one side terminal 9 being led out in the thickness direction of the coil body, the other side terminal; a one side lead-out terminal 3, formed by extending the one side terminal; a coil molding 8 having the other side lead-out terminal 4, formed by extending the other side terminal; and a core 1 of soft magnetic alloy powder formed by covering the coil body of the coil molding, the one side terminal and the other side terminal. COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To solve the problem that a conventional winding type inductance component covered with a case cannot deal with reductions in size and height and a high frequency and a large current, and heating cannot be sufficiently conducted. SOLUTION: The choke coil includes a terminal formed by punching and bending a metal plate and/or an intermediate tap integrated coil 5, a magnetic element 7 embedding the coil 5 in its interior, and a heat sink 8 of a material having excellent thermal conductivity on the surface of the magnetic element 7. Thus, the choke coil provides a small size and a low height, proper heat sink performance, and a stable structure. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a common mode choke coil obtained by winding a rectangular electric cable edgewise. SOLUTION: The common mode choke coil is constituted of a holder 2, a coil unit 13 mounted on a holder base unit 10 and a core fixing spring 3. The coil unit 13 is constituted of one set of edgewise coil 6 obtained by winding the rectangular electric cable edgewise, substantially U-shape cores 53, 54 and bobbins, to which the cores 53, 54 are fitted. The bobbin is constituted of a cylindrical unit 94 with a single flange and a lower flange unit 96 provided with a through hole 92 engaged with the cylindrical unit 94. The coil unit 13 is fixed to the holder 2 by a flange fixing unit 40, a protrusion 93, a guide groove 41, and the core fixing spring 3 fitted into the fitting hole 4. The shaft of the bobbin 9 is orthogonal to the mounting substrate. The tip ends 12 of the edgewise coil 6 are treated respectively so that insulating skins are peeled off and solder treatment is applied. COPYRIGHT: (C)2004,JPO
摘要:
PROBLEM TO BE SOLVED: To provide a planar winding, i.e., one made of a laminar conductor, which is easy to produce and which has small overall dimensions and is regular in order to facilitate its insertion into an inductive component, such as a transformer. SOLUTION: A winding is formed of a consecutive laminar conductor (11), and when it is unfolded, the winding is of a general meandering pattern comprising a plurality of loops. The loops are overlapped one another to form turns of the winding. The loop is formed with annular sectors (13) intersecting in pairs along a code (C') which is common to two consecutive rings. The laminar conductor is bent so that, in the code, the loops overlap one another to form the turns of the winding.